#main{font-family: monospace;
max-width: 50%;
}
.mono{}

img{
  width: 100%;
}

.references{
  display: block;
  font-style: italic;
  padding-bottom: 10px;
  max-width: 50%;
}

.content{
  padding-left: 50px;
  display: none;
}

@media print {
.content{
  display:block;
}
}


@media only screen and (max-width: 600px) {
  #main{font-family: monospace;
  max-width: 100%;
  }


}